Wisent/European bison - The European bison, also known as wisent, or the European wood bison, is the Eurasian species of bison. European bison were hunted to extinction in the wild in 1919 and in the Western Caucasus in 1927, but have since been reintroduced from captivity into several countries in Europe. They are now forest-dwelling. They have few predators (besides humans), with only scattered reports from the 19th century of wolf and bear predation.
The Białowieża Forest (Puszcza Białowieska) is thought to be the last remaining intact primeval forest in Europe. The forest is home to around 800 wisent (żubr in Polish), which is a protected species of European bison. You can watch them in their natural environment.
The European bison (Bison bonasus), or 'wisent', is similar in appearance to its North American relative. Bison in the Bialowieza Forest in Poland have traditionally been fed hay in the winter for centuries, and vast herds may gather around this diet supplement.